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Papaverin is used to prevent pulmonary embolus and blood clot formation after cardiac valve replacement.

How it works

Papaverin prevents the platelets from sticking together, which decreases the formation of harmful blood clots.

Common side effects

Decreased blood pressure, Flushing of face, Dizziness, Nausea, Diarrhoea, Headache

Available Medicine

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Expert advice

  • Exercise caution when used papaverine in children.
  • Inform your doctor if you have high blood pressure, glaucoma (Increased pressure inside the eye that causes visual problems), any heart or liver problem.
  • Do not use papaverine for longer than the prescribed treatment period as it is a habit forming drug and may cause dependence.
  • Seek immediate medical attention if you experience jaundice like symptoms such as stomach pain, dark coloured urine, yellowing of eyes and skin, loss of appetite.
  • Do not consume alcohol when on treatment with papaverine, as it may worsen its side effects.
  • Do not drive or use any machinery after taking papaverine as it may cause dizziness.
  • Tell your doctor if you are pregnant or planning to become pregnant or are breastfeeding.
  • Do not take if allergic to papavarine hydrochloride or any of its ingredients.
  • Do not take if suffering with severe liver disease.
  • Do not takt if having complete heart block (AV block).

Frequently asked questions



Is papaverine a calcium channel blocker?
No, papaverine is not a calcium channel blocker but may show weak calcium channel blocker activity at high doses


Is papaverine an opiate?
Yes, papaverine is an opiate


Is papaverine narcotic?
No, papaverine is a non-narcotic alkaloid

Show More

Where does papaverine come from?
Papaverine is a hydrochloride salt of an alkaloid obtained from the opium plant, or prepared synthetically.

Content on this page was last updated on 21 February, 2017, by Dr. Varun Gupta (MD Pharmacology)